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The cluster environments of radio-loud AGN

Published online by Cambridge University Press:  24 March 2015

Judith Ineson ,
Judith Croston ,
Martin Hardcastle ,
Ralph Kraft ,
Daniel Evans  and
Matt Jarvis
Judith Ineson
Affiliation:
School of Physics and Astronomy, University of Southampton, Southampton SO17 1BJ, UK email: [email protected]
Judith Croston
Affiliation:
School of Physics and Astronomy, University of Southampton, Southampton SO17 1BJ, UK email: [email protected]
Martin Hardcastle
Affiliation:
School of Physics, Astronomy and Mathematics, University of Hertfordshire, Hatfield, Hertfordshire AL10 9AB, UK
Ralph Kraft
Affiliation:
Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA
Daniel Evans
Affiliation:
Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA
Matt Jarvis
Affiliation:
Astrophysics, Department of Physics, Keble Road, Oxford OX1 3RH, UK Department of Physics, University of the Western Cape, Private Bag X17, Bellville 7535, South Africa
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Abstract

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Radio-loud AGN play an important rôle in galaxy evolution. We need to understand their properties, and the processes that affect their behaviour in order to model galaxy formation and development. We here present preliminary results of an investigation into the cluster environments of radio galaxies. We have found evidence of a strong correlation between radio luminosity and environment richness for low excitation radio galaxies, and no evidence of evolution of the environment with redshift. Conversely, for high excitation radio galaxies, we found no correlation with environment richness, and tentative evidence of evolution of the cluster environment.

Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 10 , Issue S313: Extragalactic jets from every angle , September 2014 , pp. 299 - 300
Copyright
Copyright © International Astronomical Union 2015 

References

Heckman, T. M. & Best, P. N. 2014, ARA&A, 52, 589Google Scholar
Ineson, J., Croston, J. H., Hardcastle, M. J., et al., 2013, ApJ, 770, 136Google Scholar
McNamara, B. R. & Nulsen, P. E. J. 2012, New J. Phys., 14, 055023Google Scholar